Enlarge Submodule Update Dialog

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Refactor CSubmoduleUpdateDlg to add Refresh method

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Add "Show whole project" checkbox in Submodule Update Dialog

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Fixed issue #1915: Submodule Update Dialog behaves curious

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>